common: code re-org

Move common files under a common/ directory.

Signed-off-by: Deepak Kodihalli <dkodihal@in.ibm.com>
Change-Id: I0eaf91d4ee94c1e78228da0c50892f82e91912fa
diff --git a/oem/ibm/libpldmresponder/file_io.cpp b/oem/ibm/libpldmresponder/file_io.cpp
index b05a525..d0595e3 100644
--- a/oem/ibm/libpldmresponder/file_io.cpp
+++ b/oem/ibm/libpldmresponder/file_io.cpp
@@ -4,9 +4,9 @@
 
 #include "libpldm/base.h"
 
+#include "common/utils.hpp"
 #include "file_io_by_type.hpp"
 #include "file_table.hpp"
-#include "utils.hpp"
 #include "xyz/openbmc_project/Common/error.hpp"
 
 #include <fcntl.h>